// https://www.luogu.com.cn/problem/P5714

#include <stdio.h>

int main() {
    double m, h;
    scanf("%lf%lf", &m, &h);
    double y = m / (h * h);
    if (y < 18.5) {
        printf("Underweight\n");
    } else if (y < 24) {
        printf("Normal\n");
    } else {
        printf("%lf\nOverweight\n", y);
    }
    return 0;
}
